feat: 增强管理端工作台用户活跃榜能力

- 新增用户活跃榜接口、筛选与导出能力

- 支持按智能体过滤排行榜并补充前后端测试

easyflow-ui-admin/app/src/api/dashboard.ts

@@ -1,4 +1,4 @@
-import { requestClient } from '#/api/request';
+import { api, requestClient } from '#/api/request';
 
 export type DashboardRange = '7d' | '30d' | 'custom' | 'today';
 
@@ -8,6 +8,10 @@ export interface DashboardOverviewQuery {
   startDate?: string;
 }
 
+export interface DashboardUserRankQuery extends DashboardOverviewQuery {
+  assistantId?: string;
+}
+
 export interface DashboardSummary {
   activeUserTotal: number;
   activeAssistantTotal: number;
@@ -63,9 +67,10 @@ export interface DashboardDistributionItem {
 }
 
 export interface DashboardUserRankItem {
-  assistantTotal: number;
   label: string;
+  loginName?: string;
   messageTotal: number;
+  nickname?: string;
   sessionTotal: number;
   userId?: number | string;
 }
@@ -78,7 +83,6 @@ export interface DashboardOverviewResponse {
   summary: DashboardSummary;
   trends: DashboardTrendItem[];
   updatedAt: string;
-  userRanks: DashboardUserRankItem[];
 }
 
 export async function getDashboardOverview(params: DashboardOverviewQuery) {
@@ -89,3 +93,29 @@ export async function getDashboardOverview(params: DashboardOverviewQuery) {
     },
   );
 }
+
+export async function getDashboardUserRanks(params: DashboardUserRankQuery) {
+  return requestClient.get<DashboardUserRankItem[]>(
+    '/api/v1/dashboard/user-ranks',
+    {
+      params,
+    },
+  );
+}
+
+export async function exportDashboardUserRanks(params: DashboardUserRankQuery) {
+  return api.download(buildDashboardUrl('/api/v1/dashboard/user-ranks/export', params));
+}
+
+function buildDashboardUrl(url: string, params?: Record<string, any>) {
+  const base =
+    typeof window === 'undefined' ? 'http://localhost' : window.location.origin;
+  const target = new URL(url, base);
+  Object.entries(params || {}).forEach(([key, value]) => {
+    if (value === undefined || value === null || value === '') {
+      return;
+    }
+    target.searchParams.set(key, String(value));
+  });
+  return `${target.pathname}${target.search}`;
+}